Database (the truth)
Ada
Cache (a copy)
empty
Clock
0 s
Read the profile
Wait 3 seconds
Change name in database
Delete cache entry
Reset
TTL:
6
seconds
Reads: 0 · hits: 0 · misses: 0 · stale answers: 0
Press "Read the profile" twice, then change the name and read again. Then wait until the entry expires, or delete it, and read once more.